"FreestyleJJ. I'm not sure if I follow you. At first I thought you were talking about trying to rotate your overhooked leg's knee between his legs, like you wanted to kneebar him, but then I re-read it and I'm not sure. "
Yeah, you mis-read the first time. I'll see if I can explain it better. Say they have your left ankle overhooked and they stand up. You spin your entire body to the inside, so your head goes by their right leg and to the outside of them like you would be in an omoplata, only your legs won't be reaching deep enough to actually omo-plata. The weird position you will be in can off balance them if they continue to hold onto your ankle. You can sweep them if they do by grabbing their leg and just pushing forward with your hips. If they let go, you still got out of the ankle lock.
This is used to counter the standing achilles lock or if someone stands up with the leg wrapped, so they're probally going for a leg lock.